The Benefits of Continued Use of Ovarian Function Suppression After 5 Years
Recruiting
Observational Study
Breast Cancer Female
Endocrine Therapy
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
At a Glance
- Age
- 18 – 60
- Sex
- Female
- Study type
- Observational
- Participants needed
- 1,200 (estimated)
- Sponsor
- Hongmei Zheng, PhD · Other
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About This Trial
To observe and evaluate the clinical efficacy and safety of continuous use of OFS for premenopausal patients with early breast cancer after 5 years use of OFS.
This study is a multicenter, prospective, observational, non randomized controlled, open-label real world study based on hospital medical record system data, aimed at evaluating the benefits of continuing to use OFS after 5 years of use. T…
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Diagnosed with early primary breast cancer
* Female aged 18-60 years (including 18 year and 60 year)
* Hormone receptor (HR) positive HER2 negative
* Receive 5 years of OFS treatment
* ECOG score 0-1
* Voluntarily join this study and sign the informed consent form;
* The resea…
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